2007-04-14 20:31:29 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
In scientific notation there's a coefficient and an exponential. Eg. in 9.876 x 10^4
9.876 is the coefficient and 10^4 is the exponential.
The exponential is always 10 to the power of x (which can be any number, in the example I used it would be 4). There can only be one digit before the decimal point in the coefficient, and all the other significant digits are written after the decimal point.
So, for 0.00278 to get one number before the decimal point you have to multiply the number by 10, three times. Because you have to multiply the original number when you write the exponential, 3 will be negative 3 (likewise if you were to divide the number by 10 three time it would be 10^ +3).
Thus your answer would be, 2.78 x 10^ -3. (It looks like underscore 3 BUT it's meant to be negative 3).
I hope this helps :).
2007-04-14 21:21:24 · answer #1 · answered by cookies_rule_91 3 · 0⤊ 0⤋
2.78 * 10^(-3)
A simple way to put a number in scientific notation, move the decimal place so there is only one digit on the left. Multiply that by 10^n, where n is the number of places moved. N is positive if you moved it left, negative if you moved it right.
2007-04-14 20:34:23 · answer #2 · answered by eviljebus 3 · 0⤊ 0⤋
5 x 10^-6 The extensive type accelerated via the ten should be in between a million and 10. for this reason, it incredibly is 5. To get to the 5, you could desire to head the decimal factor 6 places to the right, so the exponent of 10 is -6. And there you have it. (in case you progression the decimal factor purely 5 cases, you would be left with 0.5 x 10^-5, which isn't appropriate scientific notation variety.)
2016-12-26 08:28:02 · answer #3 · answered by ? 3 · 0⤊ 0⤋
First identify the number that lies between 1 and 10.
This number is 2.78
But the decimal point should be 3 places to the left so must multiply by 10^(-3):-
0.00278 = 2.78 x 10^(-3)
2007-04-14 21:03:56 · answer #4 · answered by Como 7 · 0⤊ 0⤋
0.00278 in scientific notation
simple
1. move the decimal inbetween the first number and second number ex (1.23)
2. count how many spaces you went. and raise it to 10
3. if you move left its postive
4. if you move right its negative
=
2.78X10^-3
2007-04-14 20:46:07 · answer #5 · answered by brownfriend19 2 · 0⤊ 0⤋
2.78 x 10 to the -3rd power
2007-04-14 20:35:15 · answer #6 · answered by suigeneris-impetus 6 · 0⤊ 0⤋
2.78 x 10^-3
2007-04-14 21:17:30 · answer #7 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
2.78 x 10^-3
2007-04-14 20:33:31 · answer #8 · answered by blackcat3556 4 · 0⤊ 0⤋
0.00278 = 2.78 x 10^(-3)
2007-04-14 20:34:42 · answer #9 · answered by Holymasteric 3 · 0⤊ 0⤋